Textile machine



Feb. 5 1924.

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TEXTILE MACHINE Original Filed April 24, 1914 17 Sheets-Sheet 17 Patented 1F eb. 5, 1924.

f T E il@ S y i? EDGAR F. HATHAWAY AND CHARLES LEA, OF DORCHESTER, MASSACHUSETTS, AS- SIGNORS, BY MESNE ASSIGNMENTS, TO BARBER-COLMANCOMPANY, OF ROCKFORD, ILLINOIS, A CORPORATION OF ILLINOIS.

TEXTILE MACHINE.

Application filed April 24, 1914, Serial No. 834,238.

' T 0 all 'whom 'if may con cem.'

Be it known that We. InoAn I". HATIIA- A WAY and Timmins LEA. both citizens of the Ilnited States. and residents of Dorchester, 5 county of Suffolk, Commonwealth of Massachusetts (whose post-office addresses are 195 Freeport Street. Dorchester, Massachusetts),

have invented an Improvement in Textile Machines, of which the followingr descripl tion, in connection with the accompanying drawings, vis a specification, like characters on the drawings representing like parts.

This invention relates to textile machines, the described embodiment thereof being in a l warp drawing machine of a semi-automatic type. Certain features of the invention, however, are broadly applicable to Wholly automatic Warp drawing machines, as Well as to textile machines intended for other purposes.

In `the case of simple patterns, automatic machines for drawing in the Warp ends have been found not only greatly to cheapen the cost but to add materially to the accuracy l5 of the drawing in. Where complicated patferns are employed, requiring a very large number of harnesses, a point is finally reached Where the complication required in the automatic machine for handling this large number' of harnesses more than offsets the added advantage of lessened labor cost. The principal complication in an automatic machine for handling a large number of harnesses results from the multiplication of parts required for automatically selecting and facing the required heddle eye in the path of the thread-placing de\ice at each thread-placing movement thereof.

In the described form of machine, We have provided mechanisms whereby a number of steps of the drawing-in operation are performed mechanically and automatically, combined, however` with means whereby .the selection and positioning of the heddle eye is performed by hand, the machine being intermittently operated preferably under the control of the operator to provide a pause or in` terval during which the operator may perform such hand operation or operations as 50 are required to complete the thread-placing operation. i

In the hand drawing-in of warps having complicated patterns, the operation was subject to frequent and serious errors. This Renewed March 17, 1922. Serial No. 544,954.

was due to the inability of the operative correctly to memorize and follow the pattern of the draw, or accurately to select the heddle at al1 times called for by the pattern. lt has been sought to correct the error due to these conditions by the provision of a harness-finding machine such as is shown in Patent No. 732,229, 'granted June 30, 1903, to C. E. Smith, wherein there is provided a pattern mechanism intermittently set in motion by the operative and adapted to designate at each` step the harness required for that particular stage of the pattern. Such designation takes place by the automatic lifting of the selected harness to a level slightly above the level o-f the harnesses of the other series, the harness which had been previously lifted being simultaneously dropped to its normal level. This leaves to the operative the mechanical operation only of placing the hand threading implement through the eye of the designated heddle, inserting the thread. in the hook thereof and drawing it through the eye. The drawing-in operation, therefore, with the aid of'such apparatus differed from the hand operation only in the automatic designation of the harness having the eye to be threaded, the threading with the hand implement being performed as before .in the hand operation, and the reeding operation being separately and subsequently performed by hand as before.

In the present machine, there is sought to.

combine with the automatic designation of the harness and the manual selection of the heddle'eye automatic features of the Wholly auto-matic machine covering other steps of the thread-placing operation whereby the complication of an old automatic machine is avoided While at the same time the utmost accuracy may be secured in the case of complicated patterns, and a greatly increased output may be had as compared With the hand operation. In other Words, the machine has the advantage of accuracy and speed which are characteristic of the automatic machine, but Without the mechanical com lication thereof.

. In one em odime-nt herein, an automatically operated drawing member is employed,

combined with automatic and simultaneously acting reeding mechanism and a atterncontrolled harness designator. In t is machine, the needle is brought to rest at or about the position of the designatedv harness, the operative thereupon placing the foremost unthreaded eye thereof over the needle bined in the hereindescribed forni of ma chine in many novel and useful relations,'

and the imachine presents features of nov` elty and utility, many-of which are novel and useful in and of themselves, apart from their combination and purpose in the machine, all of which will more fully appear from the description which follows.

The invention will be best understood by reference to the following description, when taken in connection with the accompanying 'illustration of one specific embodiment thereof, while its scope will be more particularly pointed out in the appended claims.

In the drawings:

Fig. 1 is a rear elevation of a machine ein-- 'bogying one form of the invention;

1g. 2 is an end elevation thereof looking froml the left of the machine as viewed in Fig. 1;

ig. 3 is a plan view of the machine, certain parts being shown in section;

Fi 4 is a central, transverse section showing the principal working parts of the threading and reeding mechanism on an enlarlged scale;

ig. 5 is an e'nd vi'ew of a portion of the machine showing the pattern mechanism on the same scale as Fig. 4;

Fig. 6 is a longitudinal section through the end of the machine showing the pattern and heddle designating mechanism on the saine scale as shown in Fig. 5;

Fig. 6a is a detail in elevation, showing the ceding pawl for the pattern driving member and its relation to its ratchet;

Fig. 6b is a'detail in elevation andv artial section taken on the line 6"---6b of showing the yielding driving device for the needle shaft;

Fig. 7 is a longitudinal section taken through the pattern driving member Fig. 8 is a detail in sectional elevation showing one of thepattern-controlled signal contacts;

Fig. 9 shows in rear elevation the reeding mechanism and reed-controlled traversing mechanism for the needle carriage on the t same scale as shown in. Fig. 4;

Fig. 9a is a Idetail in sectional end eleva tion pn the line 98- a in Fig. 9, showing actuating bar;

Fig. 10 is an end elevation of the traversecontrolling mechanism for the needle carriage shown in Fig. 9;

Fig. 11 is a sectional plan showing the reeding mechanism shown in Fig. 4, but o a larger scale;

Fig. 12 is a sectional elevation on the line 12-12 in Fig. 11, showing the spring positioning device for the reed opener;

' Fig. 13 is a4 sectional elevation taken on the main drive shaft showing the clutch mechanism; v

Fig. 14 is a transverse sectional elevation taken on the line `111-14 of Fig. 13;

Fig. 15 shows in diagrammatic ari-angement the circuits for the control of the starting and stopping mechanism and thn pattern controlled signals;

'the support for one end ofthe reed opener Fig. 16 is a view showing the corresponding circuit arrangements for the modified form of machine shown in Figs. 17 to 37,

` inclusive;

Fig. 18 is a plan view of the machine.

shown in Fig. 17; .Y

Fig. 19 is an enlarged front elevation of the drop wire Separating and selecting devices shown4 in Fig. 17;

IFig. 20de a detail of the power-transmitting gearing for the drop wire selecting devices;

Fig. 21 is' a sectional elevation taken on the line 2l-T21 of Fig. 1 9, looking to the left in said figure;

Fig. 22 is a similar sectional elevation taken on the line 22-22 in Fig. 19, and looking to the right in said figure;

Fig. 23 is a section in plan taken on the line 23-23 in Fig. 19;

Fig. 24 is an end elevation in partial section on the line 24-24 in Fig. 20 of the transmitting gearing;

Fi 25 1s an enlarged front elevation showing the construction and action of the releasing and turning devices for the drop wires;

Fig. 26 is a section in plan taken on the line 26-26 in Fig. 28;

Fig. is a front elevationi showing a drop wire in a slightly dierent position from that shown in Fig. 25; l

Fig. 28 is a section in end elevation taken on the line 28-28 in Fig. 25, showing the drop Wire completely faced; A

Fig. 29 is a section on the line 29-29 of Fig. 5, showing the drop wire as it enters the facing Worm; 2

Cil

. tively,

ing mechanism employed in the modified form of machine;

Fig. 31 is a side elevation of the same;

Fig. 32 is a longitudinal, central elevation takenthrough shown in Fig. 30;

Fig. 33 is a transverse, sectional elevation taken on the line 33-33 in Fig. 32;

Fig. 34 is a View similar' to Fig.' 31 showing the limiting bar in a different position;

Fig. 35 is a rear elevation ofthe warp separating and selecting worm;

Fig. 36 is a sectional elevation taken through the same; and

Fig. 37 is a transverse, sectional elevation taken on the line 37-37 in Fig. 36.

y Referring to the drawings and to the embodiment of the invention shown in Figs. 1l to 14 there-ot', the machine comprises uprightend frame supports 1 and 2 joined together by suitably disposed brace members (Figs. 1, 2 and 3). The lower portions of the end supports are provided with supportlng feet 3. The upper portions are formed into the pedestals 4 and 5, respecconnected at their top by the overhead cross piece 6 which serves as a support as well as a trackway for a number of the working parts of the machine. At the base of-the pedcstals the trame members are connected together= by the tront cross piece T and the rear cross piece 3. (Fig. 4.).

Means are provided for supporting the walp threads in convenient parallel clamped relation. Herein (Fig. 2) provision is shown for supporting one warp vin position for drawing in, but, ifdesired, two or more warps may be similarly held should the pattern require it. Herein the warp beam 10 is disposed beneath the machine between the end frame members. the trunnions ot the beam resting in pockets l1 carried by the frame members and the warp ends passing upward therefrom in a generally vertical direction shown in Fig. 2.

Near the top of the machine the thread ends are clamped loosely in a clamp 12 carried in thev clamping brackets 13, the latter supported near opposite ends of the machine on the upright, adjustable sleeves 14. The sleeves are interiorly threaded (Fig. 4) and are each provided with ahand wheel 15 by which they may be vertically adjusted on the threaded upright 16 carried by the horizontal arms 17, the latter supported by the upper cross member 6. The. threads are yieldably or loosely clamped in the clamping member 12 so that they may be readily withdrawn therefrom. Ul-shaped grips 18 embrace the portions of the clamps to keepI them from unduly spreading.

At a lower point between the upper clamp 12 and the warp beam 10 an intermediate clamp 20 is provided (Figs. 2 and 4), the latter supported on brackets 21 carthe driving clutclr ried by the uprights 22 attached to the ront cross member T. The intermediate clamp 20 consists of two tongued-andgrooved members between which the threads may be tightly held, the clamps being adjusted by means ot set'screws 23 in the gripping members 24 which overlie the ends of the clamp (Figs. 2 and AS a convenience for the operative we have herein provided an adjustable sheltI 30 (Figs. 2 and 3) at the front of the machine which serves both as a work bench and as a rest or support for the operative. rl`hev shelf is supported by the brackets 31, the lat-ter carrying rollers 32 on which it is adapted tol slide along the track rod 33 supported by and parallel to the front cross member 7. The shelf is appropriately shaped so that the operative may stand close to the machine, but has at each side of him and in front of him a support upon which he may place any required tools or appliances, the shelf being readily moved lengthwise the machine as the drawing in operation progresses from one edge of the warp to the 'other'.

In the illustrated form ot' machine we have shown means for supporting twelve harnesses designated as 40, 401. 40. etc., (see Fig. 4). lt will be obvious, however. that the same principles of operation and construction may be applied to a machine for i supporting any number ot harnesses.r Although cotton harnesses or harnesses ot various other types may be employed, herein we have shown harnesses ot' the .so-called wire heddle type (Figs. 2, 4, 5 and 6) consisting each ot' wire heddles loosely strung on the upper and lowei,l stringcr bars-41 and 42, respectively. and carried in rigid, rectangular trames consisting of the wooden upper and lower cross bars 43 and 44. respectively, and

- the vertical end connections 45.

These frames are cach supported verti` cally in parallel spaced relation by the bottom frame bar 44 in a pair ot rigid U-shaped holders 46, each holder carrying one end ot the bar 44. the holders 46 being in turn carried by the longitudinal lifting bars 47 (Figs. 4 and 6). At their upper ends the heddle frames are kept in a spaced, separated relation by the parallel separating pins 48 (Fig. projecting from the forwardly extending transverse supporting bars 17 between the successive upright heddle trame members 45. v

In order to designate the heddle frame having the heddle next to be threaded, the heddle frames are adapted to be individually and selectively elevated by a slight amount through a vertical movement ot its lifting bar 47. This, as will be more fully eX- plained, brings the line ot heddle eyes of that particular heddle into prominence be- 

